LXD - VM - write error: No space left on device

LXD
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1

Hi,

From one day to another my LXD Virtual Machine crashed without reason.
VM mainly used to host docker swarm which was up and running for more than 3 months without any issues.

See below, creating a file of 1 byte crashes :

 # echo "1" > $(mktemp)
-bash: echo: write error: No space left on device

Still I have plenty of disk space available.

# zfs list
NAME                                                USED  AVAIL     REFER  MOUNTPOINT
rpool                                               130G  94.9G       96K  /rpool
[...]
rpool/lxd/virtual-machines                         2.18G  94.9G       96K  legacy
rpool/lxd/virtual-machines/app-xxx-yyy-vm          7.24M  92.8M     7.28M  legacy
rpool/lxd/virtual-machines/app-xxx-yyy.block       2.17G  94.9G     2.58G  -
rpool/swap                                         8.50G  96.5G     6.88G  -

# lxc storage info default
info:
  description: ""
  driver: zfs
  name: default
  space used: 56.69GiB
  total space: 151.60GiB

I do not know if it is linked or not but after this crash, I tried to create another VM, installed docker on it and the first docker command hangs and gives me no console return, just hanging forever awaiting I do not know what. And same result when creating a container with docker installed (even by following the video posted in another topic)

Thanks for the help,

2

Answering myself : I didn’t run the df -h command initially.
Once done I saw that I used 4Gb of the VM initiale size.

Forced to a bigger size using lxc config device override app-xxx-yyy root size=10GB
In the VM itself, installed the packages required to run growpart /dev/sda 2 ; resize2fs /dev/sda2

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